Quarter US dollars 2004-12-31 113 2005-03-31 108 2005-06-30 91 2005-09-30 88 2005-12-31 130 2006-03-31 156 2006-06-30 65 2006-09-30 67 2006-12-31 59 2007-03-31 51 2007-06-30 86 2007-09-30 59 2007-12-31 92 2008-03-31 127 2008-06-30 129 2008-09-30 119 2008-12-31 226 2009-03-31 198 2009-06-30 207 2009-09-30 208 2009-12-31 234 2010-03-31 247 2010-06-30 232 2010-09-30 235 2010-12-31 207 2011-03-31 207 2011-06-30 116 2011-09-30 257 2011-12-31 742 2012-03-31 254 2012-06-30 169 2012-09-30 61 2012-12-31 302 2013-03-31 155 2013-06-30 262 2013-09-30 262 2013-12-31 170 2014-03-31 352 2014-06-30 321 2014-09-30 321 2014-12-31 270 2015-03-31 230 2015-06-30 201 2015-09-30 180 2015-12-31 187 2016-03-31 203 2016-06-30 187 2016-09-30 183 2016-12-31 326 2017-03-31 185 2017-06-30 226 2017-09-30 229 2017-12-31 230 2018-03-31 479 2018-06-30 408 2018-09-30 379 2018-12-31 395 2019-03-31 373 2019-06-30 373 2019-09-30 377 2019-12-31 382 2020-03-31 350 2020-06-30 355 2020-09-30 366 2020-12-31 373 2021-03-31 103 2021-06-30 95 2021-09-30 102 2021-12-31 89 2022-03-31 76 2022-06-30 76 2022-09-30 68 2022-12-31 71 2023-03-31 87 2023-06-30 45 2023-09-30 39